Miller Smith 620 Series Silverline High Purity Regulator, CGA 350, 0-250 PSI, 2-Stage

Reliable Delivery for Specialty Gases

When your work demands precision and safety with gases like Hydrogen or Methane, the Miller Smith 623-42-06-00-00 Silverline Regulator is the professional's choice. This is a two-stage regulator, meaning it steps down the cylinder pressure in two phases. The result? You get a perfectly consistent outlet pressure of 0-250 PSI from the moment you crack the valve until the tank is empty. No more constantly adjusting the knob as the cylinder pressure drops—this regulator does the work for you, letting you focus on the job at hand.

Built for the Long Haul

Miller Smith equipment is legendary for its durability, and the Silverline series is no exception. The body is machined from solid brass bar stock and nickel-plated for superior corrosion resistance and a clean, professional look. The internal diaphragm is made from high-strength 316 stainless steel, which offers far better longevity and sensitivity than standard neoprene diaphragms found in cheaper units. It also features a filtered seat to stop dirt and debris from scoring the valve, a common cause of regulator creep and failure.

Safety First Design

Working with flammable gases requires serious safety features. This regulator includes a capturable vent in the bonnet, allowing you to pipe potential leaks away from the work area—a must-have for indoor or confined space usage. It connects via a standard CGA 350 fitting and includes a high-quality stainless steel needle valve on the outlet for fine-tuning your flow. Whether you are setting up a laser system, a research rig, or a specialized welding application, this Miller regulator delivers the performance and peace of mind you need.